'Did I make a mistake?'
Kain had simply been following the most logical and instinctive series of actions for himself.
The Source energy was unable to stay and rampage in the more delicate vessels throughout his body, so he brought the energy to his star space, where he stored all the energy he absorbed while cultivating—Logical.
The excessive amount of Source energy was wreaking havoc on Pangea and the contractual spaces of Bea and the others, so he shoved as much of the energy as he could into the one empty location of his star space—Also logical.
His fifth star formed being about to burst from the excessive amount of energy—looking at it in hindsight, such a conclusion was also quite logical.
So logical, in fact, that Kain almost wanted to hit himself for not thinking of a better option. But what could he do? He didn't see any better options at the time.
